320021233432 has 32 divisors (see below), whose sum is σ = 602024346000. Its totient is φ = 159482179584.

The previous prime is 320021233423. The next prime is 320021233459. The reversal of 320021233432 is 234332120023.

It is a junction number, because it is equal to n+sod(n) for n = 320021233397 and 320021233406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3318163 + ... + 3413245.

Almost surely, 2^320021233432 is an apocalyptic number.

It is an amenable number.

320021233432 is a deficient number, since it is larger than the sum of its proper divisors (282003112568).

320021233432 is a wasteful number, since it uses less digits than its factorization.

320021233432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96475 (or 96471 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 320021233432 its reverse (234332120023), we get a palindrome (554353353455).

The spelling of 320021233432 in words is "three hundred twenty billion, twenty-one million, two hundred thirty-three thousand, four hundred thirty-two".